Attached is a file of a video i made on a custom map ive been working on. i just tried to use the /title command in a command block and it didnt show up at all. i show the basic command trying to be run in a commamd block. it says it executed the commamd in the commamd block output, but no title is ever displayed.
I cannot reproduce this issue
Does it still occur when you take the coordinate texture pack off? If so, please let me know